One in five lung cancer sufferers have a particularly virulent strain called small cell lung cancer which kills all but three per cent of sufferers within five years of diagnoses.

1/5的癌症患者带有一种特别的有毒病株，称为小细胞肺癌，这种肺癌五年内杀死了近3%的确诊患者。

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One in five lung cancer sufferers have a particularly virulent strain called small cell lung cancer which kills all but three per cent of sufferers within five years of diagnoses.

1/5的癌症患者带有一种特别的有毒病株，称为小细胞肺癌，这种肺癌五年内杀死了近3%的确诊患者。

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